Re: Removing blanks from a varning length field.

V1 is a FIXED LENGTH FIELD - it will ALWAYS be padded to its full length.

Look at SUBSTRING if you want to see the effect of %Trim.

Like so:

dcl-s v1 char(10) Int('ABCDEF');

dcl-s substring varchar(10);

substring = %TrimR( v1 );

Dsply ( 'v1 is (' + v1 + v1 + ')';

Dsply ( 'substring is (' + substring + ')';

Run that and you'll see.

Is your background in C maybe? Variables in RPG are either fixed length (and will always be padded when required) or varying length (in which case the active length is stored in the first 2 or 4 bytes of the field. There is no such thing in native RPG as a null terminated string which is the behaviour you seem to be expecting.

On Nov 18, 2019, at 1:41 PM, Hiebert, Chris <chris.hiebert@xxxxxxxxxxxxxx> wrote:

--But it does not seem to be working please refer below code :-
-- dv1 s 10
-- dv2 s 5
-- dSUBSTRING s 10 VARYING
--when we debug it shows value of v1 as 'RISHIBBBB'
--So neither trim nor trimr even substring also does not seem to work as it shows substring value as 'RISHIBBBBB'
--B---Means blanks.
-- Rishi Seth


In your example only "SUBSTRING" is defined as varying.
V1 and V2 are both defined as CHAR.
So they will always be padded with blanks to the defined lengths.

Chris Hiebert
Senior Programmer/Analyst
Disclaimer: Any views or opinions presented are solely those of the author and do not necessarily represent those of the company.

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